Metallurgic furnace



(No Model.) 4 Sheets-Sheet 1.

E. D. WASSELL.

' METALLURGIG FURNACE. ,Noi. 285,860. S Patented Oct. 2,, 1883.

WITNESSES INVENTOR.

,VSLMAW- (No Model.) 4 Sheets-Sheet 2. E. D. WASSELL.

METALLURGIG PURNAGE.

Patented Oct. 2, 1883.

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INVENTOR. W

WITNESSES:

(No Model.) 4 Sheets-Sheet 3.

E. D. WASSELL.-

METALLURGIG FURNACE.

No. 285,860. Patented-Oct. Z, 1888.

WITNESSES IN VEN TOR.

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(No Model.) 4 Sheets--Sheet 4.

E. D. WASSBLL. METALLURGIO FURNACE.

No. 285.860. Patented Oct. 2, 1883.

I NVENTOR.

WITNESSES: 6%

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UNITED STATES PATENT omcE."

EDYVIN D. \VASSELL, OF PITTSBURG, PENNSYLVANIA.

METALLURGIC FURNACE.

, SPECIFICATION forming part of Letters Patent No. 285,860, dated October 2, 1883.

Application filed October 20, 1882. (No model.) L

To all whom it may concern.-

Be it known that I, EDWIN D. WAssnLL, of Pittsburg, in the county ofAllegheny, State of Pennsylvania, have invented a certain new and useful Improvement in Metallurgic Furnaces; and I do hereby declare the following to be a full and exact description thereof, refer ence being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in metallurgic furnaces; and it consists of a gasgenerator combined with heating-fines, airheating chamber, and a means for purifying of the gases resulting from the combustion of the fuel in said gasgenerator, the whole being so arranged, combined, and operating that the gases of the furnace are caused to travel over the crown, down the forward side, under the bottom, up the side next to said air-heating chamber, and then enter the working-chamber in a highly-heated and purified state and mixed with heated atmospheric air.

My invention also consists in the peculiar construction of the furnace, whereby a triple reverberatory action of the heat is obtained, and a concentration of it upon the molten metal at the point of its greatest depth, which is at the side opposite to the charging-door and distant from it, all of which will hereinafter more fully and at large appear.

To enable others skilled in the art with which my invention is most nearly connected to make and use it, I will proceed to describe its construction and operation.

In the accompanying drawings, which form part of my specification, Figure 1 represents a vertical longitudinal medium section of my invention; Fig. 2, a horizontal transverse section on line 0000, Fig. 1. Fig. 3, avertical longitudinal section on line 00 w of Fig. 2. Fig. 4. is

- a longitudinal transversevertical section on charging-hopper, D, grate E, and line F, which communicate with the tubular flue G, which opens into the purifying-chamber H, in the crown of which is arranged a steam-pipe I, which may be connected with any suitable steam-generator.

J represents the air-heating chamber, in which is arranged an. elliptic coil oi. pipe, K, which may be connected with a blast device, and may also communicate with a mechanism for the purpose of carbureting the air in its passage from the blast device to the said pipe K. The elliptic coil of pipe K communicates with a branch pipe, L, having two outlets, M, communicating with a chamber, N, in the bridge -wall 0. The purifying chamber H communicates with two divingfiues, 1, which communicate with two horizontal fines, U, arranged under the working-chamber R. Between'the fines U, and communicating with the flue T, is an elongated chamber, Q, the side walls of which converge toward the fiue'T. The horizontal lines U, arranged on each side of the chamber Q, communicate with the ver tical flue V, arranged between the air-heating chamber J and the bridge-wall 0.

By the foregoing arrangement of parts gas is generated, purified, heated, and mixed with the heated atmospheric air or heated and can bureted atmospheric air prior to entering the working-chamber R. The crown WV of the working-chamber is inclined downward toward the center of said chamber, as indicated by the arrows marked 3, and is also inclined downward from above the charging-doors X toward the tap-chamber Y, as indicated by the arrow marked 4, the bottom Z of the work 'ing-ehamber having a similar downward inclination toward said tap-channel. By this arrangement of the bottom Z the greatest depth of the molten metal will be next to the tap-channel and distant from the chargingdoors, and with the construction described of the crown W the heat and flame of the furnace will have a triple reverberatory action traveling longitudinally, as indicated by the arrows marked 5, indicating recoil'oi' the heat and flame which is directed downward on the molten metal in said chamber, and is also reflected toward the charging-doors X.

The skillful f urnace-buil der and in etall urgist I OCJ steam purifies the gas, and at the same time from the foregoing description will readily untion of the gas-generator O, tubular flue G,

derstand the construction of my improvement in furnaces. I will therefore proceed to describe the operation, which is as follows:

5 The fuel is charged into the gas-generator C in the usual manner and with ordinary means. The gas, as it is generated, passes up through flue or flues F into the tubular flue G, and from it into \the purifying-chamber H, where it is subjected to a steam-jet from the pipe I,wh'ich it is converted into vapor, which, combining with the gas or gases in chamber H, passes down flues B into the horizontal flues a, and from them passes up through vertical flues V 'andpasses overthe bridge-wallO but in its pas- .sage over said bridge-wall the heated air, or heated air carbureted, which has entered the chamber N from the elliptic coil of pipe K passes up through a series of small flues, a, and

commingles with the hi ghly-heatedgases j ust as they are entering the working-chamber R, thereby insuring a thorough and complete consumption of said gases, and the generation and act uponthe charge in the working-chamber Bin, a, most thorough manner by the pccu: liar form of the working-chamber and its crown after performingits office in the workingchamber R, passes out through Opening W into and down through flue T, striking the bottom of said fine. The heat and flame is in part deflected and thrown back into. chamber Q, thereby heating the side walls, I), of the horizontal walls U. That part of the heat and flame not deflected passes out through neck 0 into stack S.

Having thus described the nature, construe I claim is- 1. In a mctallurgic furnace, the combination of the gas-generator (3,,tulmlar flue G, gas-purifying chamber H, flues]? U, chamber Q, flue V, and working-chamber .R, substantially as herein described, andfor the purpose set forth.-

2. In a metallurgic furnace, the combination of the gas-generator O, tubular flue G, gaspurifying chamber H, flues P U, chamber Q, flue V, air-heating chamber J, and working-chamber R, substantially as herein described, andvfor the -purpose setforth. 3. In a metallurgic furnace, the combination of the gas-generator O, tubular flue G, gas-purifyingchamber H, flues P U, chamber Q, flue V, air-heating chamberJ', chamber N, having flues a, and working-chamber R, substantially as herein described, and for the-purpose set forth.

4-. In agmetallurgic furnace, the combination of the gas-generator G, tubular flue G,

;,;as-purifying chamber H, steam-jet I, flues .P U, chamber Q, flue V, air-heating chamber r J, pipe K, flue N and working-chamber R,

substantially as herein described, and for the purpose set forth;

5. In a metallurgic furnace, the combinagas-purifying chamber H, steam-jet I, flues P U, chamber Q, flue V, air-heating chamber J, pipe K, flue N, working-chamber R, and

fine T, communicating with the neck 0 and chamber Q, substantially. as herein described,

, Q, flue V, and workingchamber R, with the bridge-Wall O, and bottom of the workingchamber inclining downward and toward the tap-channel placed 011 the opposite side of the furnace from the charging-door, substantially as hereiu'described', and for the purpose set forth.

7. In a metallurgic furnace, the com-bina- -tion of the gas-generator (J, tubular flue .G, gas-purifying chamber H, flues P U, chamber Q, flue V, air-heating chamber J, and working-chamberlR', with the bridge-wall O, and bottom of the workingchamber inclining of an intense heat, which is brought to bear downward and toward the tap-channel placed on the opposite side of the furnace from the charging-door, .substantially as herein de scribed, and for the purpose set forth. hereinbefore described. The heat andflame,

8. In a metallurgic furnace, the combina tion, of. the" gas-generator G, tubular flue G,

gas-purifying chamber H, fluesP-U, chamber .62, flue V, air-heating chamber J, chamber N,

having flues a, and working-chamber R, with the bridge-wall O, and bottom of the work- I ing-chamber inclining downward and toward the tap-channel placed on the opposite side of the furnace from the charging-door, subl stantially as herein described, and for the purpose set forth. tion, and operation of my.improvement,what

9. In ametallurgic furnace, the combination of the gas-generator O, tubular flue G, gas-purifying chamber .H, steam-jet I, flues P U, chamber Q, flue V, air-heating chamber J, pipe K, flue N, and working-chamber R, with the bridge-wall O, and bottom of the working-chamber. inclining downward and toward the tap-channel placed on the opposite side of the furnace from, the charging-door, substantially as herein described, and for the purpose set forth.

10. In a metallurgic furnace, the combinationof the gas-generator G, tubular flue G,

gas-purifying chamber H, steam-jet I, flues PU, chamber Q, flue V, air-heating chamber J pipe K, flue N, and working-chamber R, with the, bridge-wall O, and bottom of the working-chamber inclining downward and toward the tap-channel placed on the opposite side of the. furnace from the charging-door, substantially as herein described, andfor the purpose set forth.

E. D. VASSELL. 

